Oven



FIG. 1 is a right, front perspective view of an oven showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right side elevation view thereof, and the left side elevation view being a minor image thereof. 

The ornamental design for an oven, as shown and described. 